{"product_id":"yaesu-ft-60-replacement-battery-74v-2200mah-li-ion","title":"Yaesu FT-60 FNB-57 Replacement Battery 7.4V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eYaesu FT-60 \/ FT-60R Series — 7.4V Li-ion Replacement Battery (FNB-57)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 2200mAh Li-ion pack replaces the FNB-57 and seven compatible OEM part numbers for the Yaesu FT-60 and FT-60R handheld transceivers. It fits the full FT-60 platform — the same connector, voltage rail, and BMS handshake across all variants. Capacity listed is from the product specification: 2200mAh (16.28Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFT-60 \/ FT-60R platform fit:\u003c\/strong\u003e\n    The FT-60 and FT-60R share the same battery bay geometry, contact strip layout, and 7.4V supply rail. All variants listed accept this pack without modification — the BMS handshake is the same across FNB-57, FNB-64, FNB-83, FNB-V57, and FNB-V67Li replacements.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through transmit-cycle loads on the FT-60 platform. The BMS handled the PTT current spike cleanly, with no premature cutoff under sustained VHF output. Voltage held stable through the mid-cycle range where degraded original cells typically sag.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst insertion into the FT-60 charger dock:\u003c\/strong\u003e\n    If the dock LED blinks fault on first seating, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The FT-60 dock reads the BMS before accepting charge — a marginal contact on the first cycle is the most common cause of a false fault indication.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the FT-60 drops to low-power TX mid-shift on a fresh battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe FT-60 steps down transmit power automatically when the battery voltage falls below the radio's internal threshold — typically around 6.8V under load. A new cell shipped at storage voltage (around 3.6–3.7V per cell) can trigger this behaviour on the first few transmit cycles before the pack settles. This is not a fault in the radio or the battery. Run two or three full charge cycles and the pack will deliver its rated capacity consistently under transmit load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected after fitting new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe FT-60 uses a voltage-threshold bar indicator — it reads instantaneous pack voltage, not stored charge. A new cell at storage voltage reads lower than a fully charged cell, so the indicator may show one bar short immediately after fitting. Charge the pack fully in the dock before drawing any conclusions. After a complete charge, the indicator should read at the top threshold; if it still shows low, check dock contact seating and verify the charge LED moved to steady green.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426352595034,"sku":"BWCS-FNB57TW-1","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426352627802,"sku":"BWCS-FNB57TW-2","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426352660570,"sku":"BWCS-FNB57TW-3","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FNB57TW-1.webp?v=1779930808","url":"https:\/\/batteryweb.com\/products\/yaesu-ft-60-replacement-battery-74v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}